Auto-lubrication system for a work tool
US10682748B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2017 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Nov 9, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2270/60
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A lubrication system including a drive fluid chamber and a lubricant chamber. A first movable member is movable from a first position to a second position within the drive fluid chamber in response to drive fluid pressure acting on the first movable member. A second movable member is movable between a first position and a second position within the lubricant chamber and is operatively coupled to the first movable member. A biasing member is positioned to bias the first movable member toward the first position. A relief valve is associated with the first movable member and, when the relief valve in an open state, the drive fluid pressure acting on the first movable member is reduced such that the biasing member moves the first movable member to the first position within the drive fluid chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.